Peel the Cardamom and powder the grains; throw away the peels. Alternatively you can use half a spoon of readily available powdered Cardamom.
Add ice cream/frozen yogurt, milk, and mango pulp to the blender and blend them for about 2 minutes.
Add Cardamom to the milk shake and blend it again for a few seconds.
Refrigerate the milk shake and serve with or without ice.
Preparation Time:

This usually take less than 5 minutes.

Expert Tips:

Whether you are using ice cream or frozen yogurt, make sure to use the one without flavor. Vanilla is recommended because it is very close to being a generic flavor.
Some people like the milk shake to be thick and some like it watery. Control the consistency by varying the amount of ice cream/frozen yogurt. Likewise, the quantity of mango pulp that goes into the shake depends on individual tastes.